Shingle



SePt- 21, 1937- I I R. c. HARRINGTON 2,093,722

SHINGLE Filed May 3, 1937 Inventor 3. (ffi'arrzyan w By Jmww m',

A orneys Patented Sept. 21, 1937 STTE- TNT CFFIQE 2 Claims.

My inventionrelates to improvements in roofing shingles. of the typedisclosed in my co-pending application, Serial No. 71,946, filed March31, 1936, and over which the present invention is 5 designed as animprovement.

In my co-pending application, above designated, I have disclosed a sheetmetal roofing single of the diamond-shaped type designed to be laidcornerwise in interlocking relation with subj acent shingles.

The principal object of my present invention is to provide a shingle ofthe general type disclosed in my application, supra, but equipped withimproved means for interlocking with other Singles, the improvementsbeing directed toward accomplishing the interlocking by relative cammingof interlocking parts of the shingles into looking relation.

Another object is to provide a shingle of the type above identified,adapted to interlock with other shingles in clamping relation theretoand against relative Vertical movement.

Other and subordinate objects are also comprehended by my invention, allof which, together with the exact nature of my improvement, will bereadily understood when the following description and claims are readwith reference to the drawing accompanying and forming part of thisspecification.

In said drawng:

Figure 1 is a fragmentary view in top plan illustrating the manner inwhich the shingle of my invention is laid,

Figure 2 is a similar view, drawn to an enlarged scale, and illustratingin detail the relation of one shingle to subjacent shingles,

Figure 3 is another fragmentary view in top plan illustrating the cornerconstruction of the shingle, and an interlocking slot with which theshingle is provided,

Figure 4 is a view in transverse section taken on the line 4-4 of Figure1, looking in the direction indicated by the arrows and drawn to anenlarged scale,

Figure 5 is a fragmentary view in edge elevation of the shingle, and,

Figure 6 is a view in top plan of the shingle.

Referring to the drawing by numerals, the

' shingle I of my present invention, as in the case metal, substantiallydiamond-shaped, and designed to be laid cornerwise to provide upper andlower pairs of side edges 2 and 3, respectively, convergent in eachinstance, and top, bottom and side corners 4, 5 and 6, respectively, thelatter being straight vertically. The upper side edges' are eachprovided with an upturned right angled marginal fiange l, and the lowerside edges with a similar down-turned fiange 8 respectively.

Extending along the fianges l parallel therewith are two courses ofparallel strengthening and water deflecting ribs 8 punched upwardly inthe shingle i and intersecting the side corner 6 all as shown in Figurel.

Coming now to the interlocking feature, the bottom corner 5 of theshingle is formed with a normally depending bendable V-shaped lookingtab iii formed by bending said corner downwardly. A pair of'slots i iare formed in the side edges 3 of the shingle, respectively, immediatelybelow the side corners 6, said slots extending inwardly of said edgesparallel with the transverse median line of the shingle. A pair of slots|2 formed in the side flanges 8, respectively, extending rearwardly andupwardly from the edges of said fianges to the outer ends of the slotsII, and forming oblique camming continuations of the latter.

As will be clear from an inspection of Figures 2 and 3, particularly,the shingles are laid in transverse overlapping rows with the Corners 6of contiguous shingles in a row abutting and the fianges 'l of one rowoverlapping the upper edges of the shingles in a subjacent row below thelowei` course of ribs 9 to cover the latter from view. In this position,the slots Ii in adjacent shingles I of each row are horizontally alignedin mating relation with the mouths of the Slots l2 opening onto thelower shingles just below the inner course of ribs 9 of a subjacentshingle, which ribs form a right-angled abutment below and in front, orabove, said slots |2.

The tab iU of a shingle is adapted to interlock in the mating slots and|2 of a pair of subjacent shingles as follows. The tab Ii] is insertedinto said mating slots ll and the shingle pressed downwardly at thatpoint. Under such pressure said tab is bent and cammed forwardly underthe subjacent pair of shingles first by the oblique slot |2 and secondby engagement of the point of the tab with the before-mentionedrightangled abutment formed by the lower course of ribs 9 on a shinglesubjacent to said pair. As best shown in Figure 4, said abutment camsthe end of the tab IO upwardly thereby interlocking r the shingle fromwhich said tab depends with the shingles of the subjacent pair. It willbe observed that the described interlocking relation clamps theinterlocked shingles together against Vertical movement.

ly, the latter being vertically straight,` 'and having a pair of slotsextending inwardly thereof, re-

spectively, a pair of downturned marginal flanges extending along saidlower sideedges, respectively, and having a pair of inwardly extendingslots therein, respectively, inclining from the outer ends of the slotsof said first-mentioned pair 'and forming continuations thereof, and adownturned bendable tab on the lower corner of said shingle.

2. A metal roofing shingle comprising a diamond-shaped body portionhaving upper and lower pairs of convergent side edges, respectively, andupper, lower and side Corners, respectively, the latter being verticallystraight and having a pair of slots extending inwardly thereof,respectively, a pair of downturned marginal fianges extending along saidlower side edges, respectively, and having a pair of inwardly extendingslots therein inclining from the outer ends of the slots of said firstmentioned pair, respectively, and forming continuations thereof, adownturned bendable tab on the lower corner of said shingle, and a pairof upstanding convergent beads extending along the upper side edges,respectively, parallel therewith and intersecting said side Corners.

RO-Y C. HARRINGTON.

